Motor-vehicle light



Oct. 26 1926. 1,604,836 I w. H. MOLDENHAUER MOTOR \i/EHICLE LIGHT Filed Nov. 20, 1924 INVENTOR the Get. 26, 1926.

ltlhlli E STATfi W'ILLIAM H. MOLDENHAUER, OF NORTH BERGEN, NEW JERSEY.

MOTOR-VEHICLE LIGHT.

Application filed November This invention relates to improvements in motor vehicle lights.

One of the objects of this invention is to produce a motor vehicle light and particularly a tail light for motor trucks in which the bulb will be so mounted and arranged in relation to the lamp casing as to prevent breaking of the filament during passage of the vehicle over rough roads, thus avoiding the extinguishin of the light and the fines incidental thereto, and also prolonging the life of bulb. I

Another object of my invention is to take advantage of the greater resistance to breaking afforded by the arrangement of the bulb in vertical position and. at the same time to nections for providing a floating connection with the lamp casing preferably comprising a washer fixed to said socket sleeve intermediate its ends, springs surrounding said socket sleeve and arranged above and below said washer, and an enclosing casing fixedly connected to the lamp and having spring abutments arranged to place said springs under tension and to cause the opposite ends of the socket sleeve to project therethrough to enable connection of the bulb and con nector thereto.

l Vith these and other objects in view, the invention comprises the combination of member and arrangement of parts so combined as to co-act and cooperate with each other in the performance of the functions and the accomplishment of the results herein contemplated, and comprises in one of its adaptations the species or preferred form illustrated in the accompanying drawing, in which Fig. 1 is a front elevation partially in section of a tail light embodying my invention;

Fig. 2 is a section on the line 2-2 of Fig. l; and

Fig. 3 is a disassembled view partly in ele- 20, 1924.. Serial No. 750,986.

vation and partly in vertical section of a bulb, socket--sleevewith surrounding springs, spring enclos ng and tensioning casing and connector employed in my invention.

I Referring now to these drawings which illustrate a preferred embodiment of my invention 1 indicates a lamp casing which is, as illustrated, rigidly connected by a bulb and nut 2, 2 with a rigid bracket 3 suitably mounted on a motor vehicle, my invention being particularly applicable to the production for use in motor trucks or likevehicles of a tail light in which the bulb filament will be so mounted as to enable it to withstand-the shocks and jars, both of depression and rebound, caused bythe passage of the vehicle over rough roads. In the embodiment shown, the lamp casing 1 is provided with the usual lens'l and has extending vertically upward through the bottom portion 1 thereof an interiorly screw threadedsocket 1 within which socket is fixedly mounted, a spring enclosing and tensioning casing l, which as shown is provided with exterior screw-threads cooperating with the screw-threaded socket 1 of the lamp casing. In the preferred form illustrated I have mounted within the casing 4:, so as to have its opposite ends projecting through the ends of said casing, a socketsleeve 5 having at one of its projecting ends a detachable connection for a bulb in the form of a bayonet slot 5 and having at its opposite projecting end another detachable connection for an electrical connector 7 which is also in the form of a bayonet slot 5 As illustrated, the sleeve 5 is provided intermediate its ends with a washer 5 and springs 8 and 9 are arranged to surround said sleeve. Each of such springs has one of its ends abutting against said washer while the opposite ends of such springs abut against the opposite ends of the casing 4.

Thus, the spring-enclosingand-tensioning casing i has an opening 4 through which the upper end of sleeve 5 passes, said casing also has an end flange 45 surrounding said opening so as to abut against the upper end of the spring 8 while the screwthreaded cap 4? has a registering opening 4 through which is passed the opposite end of the sleeve and also has a flange surrounding said opening and abutting against the opposite end of the spring 9.

Obviously the socket-sleeve with the spring surrounding the same-may be passed upward into the casing 4 and tension may be applied on the springs by the cap 43. The socket-sleeve with the springs arranged above and below the washer 5 and in abut ment with the opposite ends of the casing will thus cause shocks and jars of depres sion or rebound to be so absorbed as to prevent the breaking of the filament of the bulb during the passage of the vehicle over rough roads, thus avoiding the extinguishing of the light and the fines incidental thereto and also prolonging the life of the bulb.

This arrangement will furthermore provide a convenient construction for the detachable connection of the bulb and the electrical connector.

Having described my invention, I claim:

1. In a motor vehicle lamp, a casing member adapted to be fixedly mounted on the vehicle and having a vertically-disposed opening therethrough, a socket-sleeve member extending through said vertically-disposed opening and projecting on opposite sides thereof, said socket-sleeve member having within the casing member a detachable connection for a bulb and also having at its opposite end a detachable connection for an electrical connector, a single intermediate spring abutment on one of said members and two end abutments for springs on the other member at opposite sides of ace-ass said single abutment and springs interposed between said abutments and surrounding said sleeve.

2. A motor vehicle light embodying a lamp easing adapted to be fixedly mounted on the vehicle and having an opening through the bottom thereof, a spring enclosing and tensioning casing mounted in said opening in fixed relationship to the casing, a socket sleeve resiliently mounted within said casing and having its opposite ends projecting above and below the same and provided with means for detachably connecting a lamp socket and an electrical connector.

3. A motor vehicle light embodying a lamp casing adapted to be fixedly mounted on the vehicle and having an opening through the bottom thereof a spring enclosing and tensionin casing mounted in said opening in fixec relationship to the casing, a socket sleeve mounted in said casing and having between its ends a fixed washer and springs arranged at opposite sides of said washer and abutting against the opposite ends of said casing, said sleeve having at its upper end means for detach ably connecting a bulb and having at its lower end means for detachably connecting an electrical connector.

In testimony whereof I have affixed my signature.

WILLIAM H. MOLDENHAUER. 

